jQuery.fn.ajaxProccessTip = function() {
	$(this).append('<div id="ajax_tip" style="background-color: #fff1a8; width: 100px; height: 20px; z-index: 1000;	padding: 1px; float: right;	position: absolute;	top: 10px; right: 10px;	text-align: center;"></div>');
	var tip = $("#ajax_tip");
	tip.hide();
    tip.ajaxStart(function(){
   	    $(this).show();
   	});
    tip.ajaxSend(function(event, request, settings) {
        $(this).html('<span>正在请求...</span>');
   	});
    tip.ajaxComplete(function(event,request, settings) {
    	$(this).html('<span>请求完成...</span>');
   	});
    tip.ajaxStop(function() {
   	 	$(this).hide();
   	});
	return this;
};